I agree completely with Simon. I joined in the joke about the Slav, for exactly the same reasons. It’s my main defence, and I am happy with it. But I’m no young Tal either. (Of course the old Tal played the Slav

)
Everything has pluses and minuses. But the Dutch has a lot to recommend it:
1. Although there are dull lines in every opening, there is nothing like the exchange slav or exchange KID to worry about. Most Dutch lines have built in imbalance.
2. It is respectable enough to rely on, but unusual enough that your opponents do not play against it every week
3. With a bit of extra work, you can use it against flank openings too. (whatever you play, you need a bit of extra work. But 1. Nf3 is a real problem for a benoni/ benko/ grunfeld repertoire)
4. The theory does not change every week, but there is enough that if you invest some time in study you will get some benefit over the board
5. There are some good training materials available
I don’t know Simon Wiliams as well as Simon Ansell does, so I have no reason to be shy in recomending his products

If only because GM Chernaiev said I owed Simon some money after I surprised him with one of the Killer French recommendations
